Prabal Gurung showcased five Asian models, two more than he featured in his February show. Mr. Gurung is one of a number of major designers at New York Fashion Week who have been diversifying their runways, in an effort to reach wider audiences.

Prabal Gurung showcased five Asian models, two more than he featured in his February show. Mr. Gurung is one of a number of major designers at New York Fashion Week who have been diversifying their runways, in an effort to reach wider audiences.

While it has been rare for designers to feature more than two Asian models in a show, several this year, including Michael Kors and Jason Wu, used three or more. Here, a runway look at the Jason Wu Spring 2013 collection.

While it has been rare for designers to feature more than two Asian models in a show, several this year, including Michael Kors and Jason Wu, used three or more. Here, a runway look at the Jason Wu Spring 2013 collection.

Mr. Kors and model Zhang Zilin backstage at his Wednesday show. Overall, at 10 major brands' shows, there were 26 Asian models, eight more than those brands used in the previous New York Fashion Week in February.

Mr. Kors and model Zhang Zilin backstage at his Wednesday show. Overall, at 10 major brands' shows, there were 26 Asian models, eight more than those brands used in the previous New York Fashion Week in February.